IBIS Open Forum Minutes
Meeting Date: May 13, 2011
Meeting Location: Teleconference
VOTING MEMBERS AND 2011 PARTICIPANTS
Agilent Radek Biernacki*, Fangyi Rao
AMD Nam Nguyen*
Ansys (Ansoft Corporation) Samuel Martens
Apple Computer (Matt Herndon)
Applied Simulation Technology Norio Matsui
ARM (Nirav Patel)
Cadence Design Systems Terry Jernberg*, Ambrish Varma, Dennis Nagle,
Martin Biehl
Cisco Systems Syed Huq*, Mike LaBonte*, Luis Boluna,
Ashwin Vasudevan, Zhiping Yang
Ericsson Anders Ekholm
Freescale (Jon Burnett)
Green Streak Programs Lynne Green
Hitachi ULSI Systems (Kazuyoshi Shoji)
Huawei Technologies Xiaoqing Dong
IBM Adge Hawes*, Greg Edlund*
Infineon Technologies AG (Christian Sporrer)
Intel Corporation Michael Mirmak*, Udy Shrivastava
IO Methodology Lance Wang*
LSI Brian Burdick*
Mentor Graphics Arpad Muranyi*, Ed Bartlett, Vladimir Dmitriev-
Zdorov,
Steve Kaufer, Chuck Ferry
Micron Technology Randy Wolff, Andrea Spiezia, Roberto
Izzi,
Aniello Viscardi, Giovanni Guerra,
Francesco Madonna, Giuseppe Fusillo
National Semiconductor Hsinho Wu, Pegah Alavi, John Goldie
Nokia Siemens Networks GmbH Eckhard Lenski*
Signal Integrity Software Walter Katz*, Todd Westerhoff, Mike
Steinberger,
Barry Katz
Sigrity Raymond Chen, Kumar Keshavan, Yingxin Sun
Synopsys Andy Tai, Ted Mido, Scott Wedge
Teraspeed Consulting Group Bob Ross*, Kellee Crisafulli, Tom
Dagostino,
Scott McMorrow
Texas Instruments Casey Morrison, Alfred Chong
Toshiba (Yasumasa Kondo)
Xilinx (Raymond Anderson)
ZTE (Huang Min)
Zuken (Michael Schaeder)
OTHER PARTICIPANTS IN 2011
AET Mikio Kiyono
Altera Hui Fu, Zhuyuan Liu, Julia Nekrylova
Avago Weiping He, Minh Quach, Sari Tocco
Bayside Design Elliot Nahas
Broadcom Mohammad Ali
Exar Corporation Helen Nguyen
Granite River Labs Johnson Tan, Mike Engbretson, Quintin
Anderson
High Speed Design Center Ben Chia
ICT-Lanto Steven Wong
KEI Systems Shinichi Maeda
Maxim Integrated Products Hassan Rafat
Oracle Gustav Blando
Politecnico di Torino Igor Stievano, Stefano Grivet-Talocia
Pristine Signals AbdulRahman (Abbey) Rafiq
Renesas Electronics Takuji Komeda
Siemens Manfred Maurer
Simberian Yuriy Shlepnev
ST Microelectronics Fabio Brina, Alan Smith
Thales Communication Alexandre Amedeo, Cyrip Chastang
TechAmerica (Chris Denham)
University of Illinois Jose Schutt-Aine
University of L'Aquila Danilo di Febo
Vitesse Semiconductor Sirius Tsang
Independent Yoichi Niioka
In the list above, attendees at the meeting are indicated by *. Principal
members or other active members who have not attended are in parentheses.
Participants who no longer are in the organization are in square brackets.
UPCOMING MEETINGS
The bridge numbers for future IBIS teleconferences are as follows:
Date Meeting Number Meeting Password
June 3, 2011 206 520 527 IBIS
June 7, 2011 IBIS Summit at DAC, San Diego – no teleconference
For teleconference dial-in information, use the password at the following
website:
https://cisco.webex.com/cisco/j.php?J=206520527
All teleconference meetings are 8:00 AM to 9:55 AM US Pacific Time.
Meeting agendas are typically distributed seven days before each Open
Forum. Minutes are typically distributed within seven days of the
corresponding meeting. When calling into the meeting, follow the prompts
to enter the meeting ID. For new, local international dial-in numbers,
please reference the bridge numbers provided by Cisco Systems at the
following link:
http://www.cisco.com/web/about/doing_business/conferencing/index.html
NOTE: "AR" = Action Required.
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INTRODUCTIONS AND MEETING QUORUM
No new participants.
CALL FOR PATENTS
Michael Mirmak called for any patents or pending patents related to the
IBIS 3.2, IBIS 4.2, IBIS 5.0, Touchstone 2.0 or ICM 1.1 specifications. No
patents were declared.
REVIEW OF MINUTES AND ARS
Michael Mirmak and Mike LaBonte called for comments regarding the minutes
of the April 22, 2011 IBIS Open Forum teleconference. The minutes were
approved with no changes.
MEMBERSHIP STATUS AND TREASURER'S REPORT
Michael Mirmak noted that new information had become available from
TechAmerica summarizing recent renewals. Bob Ross added that 12 to 14
renewals had been received, with a lot more in progress. Some payment
policies at other companies are causing delays in processing membership
dues. Finally, Bob noted that National Semiconductor had re-joined IBIS.
The roster and poster should be updated to reflect this.
WEB PAGE UPDATES
No update.
MAILING LIST ADMINISTRATION
Mike LaBonte is seeing increasing issues with the eda.org and freelists.org
mailing lists. Many of the problems are emails sent by the list being
rejected by subscribers’ servers. There is currently a fair amount of
email traffic on the lists. Anyone not receiving email from any list they
are subscribed to should check the archives for emails that may not have
reached them. Also, check spam for mistakenly discarded IBIS emails.
Contact Mike LaBonte if issues are found.
MODEL LIBRARY UPDATE
No update.
MISCELLANY/ANNOUNCEMENTS
None.
OPENS FOR NEW ISSUES
None.
INTERNATIONAL/EXTERNAL ACTIVITIES
- DASC
Michael Mirmak said the most recent meeting of DASC covered nothing related
to IBIS as part of its agenda. The DASC file and e-mail archive may be
found at:
http://www.dasc.org/
- P1735 Encryption
No update. The IEEE Study Group on Encryption web reflector archives are
found at:
http://www.eda-stds.org/ip-encrypt/hm/
-VHDL-AMS Table-Driven Models
Arpad Muranyi had no update. More information can be found at:
http://www.eda.org/twiki/bin/view.cgi/P10761/ProjectsArea#Table_driven_
Modeling_Champion_J
-Conferences
Bob Ross mentioned two conferences with potential interactions with IBIS.
- EPEPS (Electrical Performance of Electronic Packaging and Systems) will
be held October 23-26 in San Jose, California. More information can be
found at:
http://epeps.ece.illinois.edu/
- EDAPS (Electrical Design of Advanced Packaging & Systems) will be held
December 12-14 in Hangzhou, PRC. More information can be found at:
http://www.edaps2011.org
In addition, a European version of EPEPS has been established, while EDAPS
is considered an EPEPS conference in the People's Republic of China. IBIS
has been invited to all three, with special emphasis possible at EPEPS.
EMCCompo2011, the 8th International Workshop on Electromagnetic
Compatibility of Integrated Circuits, will be held in Dubrovnik, Croatia,
November 6-9, 2011. Organizers of the event have contacted the IBIS Open
Forum to see if there is interest in having a tutorial session on IBIS.
April 1 is the deadline for registration. More information can be found
at:
http://www.emccompo2011.org
-Press Update
No update.
IEC APPROVAL ACTIVITIES
No update.
TECHAMERICA UPDATE
Michael Mirmak noted that TechAmerica is encouraging groups to file PINS
(Project Initiation Notification System) documents at the beginning of
specification development, not near the end as has been IBIS practice.
These are used by ANSI to track ongoing work and no limit exists on how
long a PINS document may stay "open" without a formal filing of a
specification for balloting with ANSI. Bob Ross asked whether the IBIS
Cookbook should have a PINS document filed. Michael responded that this
might correspond to an ANSI "handbook" rather than a standard, but that he
would look into the possibility.
KAVI members’ login is at:
http://workspace.techamerica.org/apps/org/workgroup/ibis-members
SUMMIT STATUS
-SPIE IBIS Summit
Bob Ross reported that the Naples SPI conference, outside of the summit,
did not feature many IBIS-related topics. SPI ownership has been turned
over to the University of Cassino. The name of SPI has now been changed to
"Workshop on Signal and Power Integrity" (still using "SPI" as initials).
The next European meeting is likely at Sorrento, Italy in 2012.
As for the summit, Antonio Girardi of Micron/Numonyx was expected but not
able to attend due to an injury to his shoulder. Approximately 20 people
signed in, including officers Anders Ekholm, Bob Ross, Lance Wang and Randy
Wolff. Lance added that the whole European area is researching power
delivery (MOCHA) and that the summit was a "really good" event.
-DAC IBIS Summit
The Design Automation Conference (DAC) is June 6-9, 2011 in San Diego, CA.
The IBIS Summit will be held June 7. Michael Mirmak reported that a
conference room has been secured at the Omni Hotel. Lance Wang has sent
notices. Michael thanked Mentor Graphics for sponsoring the room. Another
call for papers will be sent out next week. This meeting will include the
annual election of officers, including some non-member positions. Contact
the board if you are interested in running for an office.
Sponsorship opportunities for all upcoming IBIS summits are available, with
sponsors receiving free mentions in the minutes, agenda, and other
announcements. This includes upcoming events at DAC and in Asia. Contact
the IBIS Board for further details.
IBIS QUALITY TASK GROUP
Mike LaBonte reported that "great technical discussions" have recently been
held on developing a new format for golden test loads and waveforms. The
[External Circuit] keyword was considered but was deemed "too flexible".
Currently, the Task Group is staying with IBIS-ISS as a means of improving
test load and waveform expressions. The group is meeting weekly on
Tuesdays at 8 AM PDT.
The Quality Task Group checklist and other documentation can be found at:
http://www.eda.org/ibis/quality_wip/
IBIS MODEL REVIEW TASK GROUP
No update.
ADVANCED TECHNOLOGY MODELING TASK GROUP
Arpad Muranyi reported that regular meetings continue as usual. Several
BIRDs were under active consideration and the task list may hopefully be
completed by the DAC IBIS Summit.
Task group material can be found at:
http://www.eda-stds.org/ibis/macromodel_wip/
INTERCONNECT TASK GROUP
Michael Mirmak reported weekly meetings continue on IBIS-ISS. A 1.2 review
draft is being finalized based on this week's comments, which will be
reviewed in the next few meetings, before being turned over to the IBIS
Open Forum. Active discussion continues on Walter Katz's proposals on
integrating links to IBIS-ISS into IBIS. Bob Ross suggested that an ANSI
PINS document be filed on IBIS-ISS.
Task group material can be found at:
http://www.eda.org/ibis/interconnect_wip/
IBIS EDITORIAL UPDATE
Michael Mirmak reported there have been regular meetings and contact with
the TechAmerica tech writer. The next meeting topic will include which
IBIS version number scheme should be used.
New IBIS 5.0 documentation can be reviewed at:
http://www.eda.org/ibis/reformat_wip/
NEW ADMINISTRATIVE ISSUES
None.
BIRD116: ADD IBIS-ISS TO [EXTERNAL MODEL] AND [EXTERNAL CIRCUIT] AS A
SUPPORTED LANGUAGE
Arpad Muranyi reported that no updates have been received, but that
comments and suggestions are still encouraged.
BIRD117.3: PARAMETERIZE A_TO_D AND D_TO_A CONVERTERS
Arpad Muranyi reported that no updates have been received, but that
comments and suggestions are still encouraged.
BIRD118.2: ANALOG PARAMETER ASSIGNMENTS
Arpad Muranyi reported that no updates have been received, but that
comments and suggestions are still encouraged.
BIRD121: IBIS-AMI NEW RESERVED PARAMETERS FOR DATA MANAGEMENT
Walter Katz noted that this BIRD is under IBIS ATM Task Group
consideration.
BIRD122: IBIS-AMI NEW RESERVED PARAMETERS FOR ANALOG MODELING
Walter Katz noted that this BIRD is under IBIS ATM Task Group
consideration.
BIRD123.1: IBIS-AMI NEW RESERVED PARAMETERS FOR JITTER/NOISE
Walter Katz stated that he has created a graphic to help in understanding
the BIRD. Arpad Muranyi mentioned that the graphics have been uploaded to
the ATM website, as they are intended to enhance understanding of the
technical issues. Mike LaBonte suggested that a BIRD123.2 should include a
URL to the graphic. Michael Mirmak asked whether the diagram should be
actually part of the BIRD. Arpad agreed that it should and that
participants could discuss formatting and presentation of the diagram in
the IBIS-ATM meeting. Bob Ross proposed that the team write it up as part
of the BIRD, not just present it as a separate URL. Arpad moved to take
discussion offline; Bob seconded and no objections were raised.
BIRD124: IBIS-AMI NEW RESERVED PARAMETERS FOR DEPENDENCY TABLES
Walter Katz noted that, as soon as the dependency tables proposals are
complete, BIRD124 will be re-written. Bob Ross suggested that the tables
proposals would be a new BIRD and that BIRD124 is already too large a BIRD.
An editorial review and revisions may be needed.
BIRD125: MAKE IBIS-ISS AVAILABLE FOR IBIS PACKAGE MODELING
Arpad Muranyi reported that no updates have been received, but that
comments and suggestions are still encouraged.
BIRD127: IBIS-AMI TYPOGRAPHICAL CORRECTIONS
Arpad Muranyi noted that this BIRD is theoretically ready for a vote, but
it may be better to wait with that because some new items may need to be
added to it, such as clarifications on what the reasons for the success of
AMI function failure codes (1 or 0) are, although it may be better to start
separate BIRDs for the new items show in rows 51-61 in the Task List.
BIRD128: ALLOW AMI_PARAMETERS_OUT TO PASS AMI_PARAMETERS_IN DATA ON CALLS
TO AMI_GETWAVE
Ken Willis and Walter Katz were stated to be working on a joint proposal.
Arpad Muranyi noted that he maintains his reservations/opinion regarding
using outputs for inputs and vice-versa. He added that he is considering
the possibility of adding explicit "overloaded" functions to handle this
situation, similar to programming languages. Walter responded that a
simpler effort would be to change the name of the argument in the
"signature" AMI_Parameters_Out to *_IO.
BIRD129: ADD “POLARITY†ARGUMENT TO D_TO_A CONVERTERS
There have been no changes or comments since introduction. People are
encouraged to submit comments. This BIRD is also related to BIRDs 116, 117
and 118.
BIRD130: CROSSTALK CLARIFICATION WITH RESPECT TO AMI
Arpad Muranyi noted that the BIRD has been discussed extensively in the
IBIS-ATM Task Group, and no comments/questions had yet been received since
it was submitted. The purpose was to correct the specification to remove a
restriction on modifying channel responses. In addition, it spells out
some technical details in terms of flow and crosstalk.
Walter Katz moved to schedule the BIRD for a vote at the next
teleconference. Arpad Muranyi seconded. Without objection, BIRD130 was
scheduled for a vote at the next teleconference.
Michael Mirmak noted, per an earlier observation by Bob Ross, that the BIRD
text had been updated to properly display some special characters.
BIRD 131: IBIS-AMI REPEATERS
Walter Katz noted that this BIRD is under IBIS ATM Task Group
consideration.
IBISCHK5 BUG STATUS
Michael Mirmak noted a typo in the title of BUG128 (a missing space) and
took the AR to correct it online.
While no new BUGs were reviewed, Michael Mirmak asked whether any issues in
or plans for the parser were known that will be fixed/affected by pending
BIRDs. Bob Ross responded that parser BUGs identify serious errors that
require fixes, even to baseline syntax. Mike LaBonte observed that BUG104
is very old (2009) and really needs a BIRD to address the stated problem,
related to how [Model] and the test load/waveform keywords interact. He
added that the IBIS Quality group is developing something new to resolve
this, possibly a BIRD.
Michael Mirmak suggested that the Open Forum or an individual participant
could address this in a BIRD with a few sentences, after IBIS-ISS work has
completed, but implications could be significant. Bob responded that the
parser doesn't enforce rigid hierarchy as implied by the specification.
Mike LaBonte suggested that the Quality Group will take up discussion of
the problem.
IBISCHK5 PARSER STATUS
Bob Ross reported that no update release is planned, as several issues are
still open. He has requested that the developer provide a complete list of
error numbers, which is expected by the end of the year.
IBIS-ISS SPECIFICATION DRAFT
Michael Mirmak reported that the document is still being updated by the
Interconnect Task Group. Comments from the general public are still
welcome but the document will be resubmitted to the Open Forum after the
Task Group completes its revisions.
The review draft revision 1.2 can be reviewed at:
http://www.eda.org/pub/ibis/ibis-
iss_wip/IBIS_ISS_review_draft_1.2.pdf
NEW TECHNICAL ISSUES
Michael Mirmak provided a very brief overview of the Mantis system on
eda.org. Mantis is an open-source-based database tracking and filing
system, used for software and documentation of bugs. Reports are
automatically assigned numbers, may be classified in a reconfigurable way,
and both submissions and updates can be moderated. Michael suggested that
Mantis could be used for both IBIS parser and specification issue tracking,
without having to develop a new system or even leave eda.org. Bob Ross
asked whether the listings would be publicly visible. Michael responded
that they were, though submission may only be available to those who
register.
The Mantis system for eda.org standards and documents can be found at:
http://www.eda.org/mantis/
Michael also provided a brief overview of approved and pending BIRDs, and
resulting parser changes. His list included a classification of the BIRDs
as being included in IBIS 5.1 or 5.2, so that the impact of the BIRDs and
the editorial reformatting of IBIS would be clearer. Bob Ross suggested
bringing the list up at the DAC IBIS Summit to "hash it out" with the
participants, noting that more BIRDs are coming. He added that there may
be an indirect impact to the parser from some BIRD changes, due to BIRDs
and the parser reflecting actual intent (as opposed to what the
specification actually says).
Bob suggested BIRD113.3 be added to 5.1 rather than 5.2. No objections
were raised. In terms of editorial updates, Bob suggested that IBIS may
see a period where two formats of BIRDs will be acceptable. The Editorial
group or some other team will edit BIRDs into a final document. Michael
Mirmak suggested that the participants could submit BIRD-by-BIRD inclusion
motions if needed. Finally, Bob suggested that he may submit a C_comp BIRD
in the very near future.
NEXT MEETING
The next IBIS Open Forum teleconference will be held June 3, 2011 from 8:00
to 10:00 AM US Pacific Standard Time. A vote on BIRD130 is scheduled. The
next Open Forum Summit will be held June 7, 2011 in conjunction with DAC.
Mike LaBonte moved to adjourn and Bob Ross seconded.
========================================================================
NOTES
IBIS CHAIR: Michael Mirmak (916) 356-4261, Fax (916) 377-3788
michael.mirmak@intel.com
Platform Applications Engineer, Intel Corporation
1900 Prairie City Rd.,
FM5-239
Folsom, CA 95630
VICE CHAIR: Lance Wang (978) 633-3388
lwang@iometh.com
President/CEO, IO Methodology, Inc.
PO Box 2099
Acton, MA 01720
SECRETARY: Randy Wolff (208) 363-1764, Fax: (208) 368-3475
rrwolff@micron.com
SI Modeling Manager, Micron Technology, Inc.
8000 S. Federal Way
Mail Stop: 01-711
Boise, ID 83707-0006
LIBRARIAN: Anders Ekholm (46) 10 714 27 58, Fax: (46) 8 757 23 40
ibis-librarian@eda.org
Digital Modules Design, PDU Base Stations, Ericsson AB
BU Network
Färögatan 6
164 80 Stockholm, Sweden
WEBMASTER: Syed Huq (408) 525-3399, Fax: (408) 526-5504
huqs@cisco.com
Manager, Hardware Engineering, Cisco Systems
170 West Tasman Drive
San Jose, CA 95134-1706
POSTMASTER: Mike LaBonte (978) 936-2147
milabont@cisco.com
Signal Integrity Engineer, Cisco Systems
Mail Stop BXB01/1/
1414 Massachusetts Ave
Boxborough, MA 01719
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To report ibischk parser BUGs as well as tschk2 parser BUGs. The BUG
Report Form for ibischk resides along with reported BUGs at:
http://www.eda.org/ibis/bugs/ibischk/
http://www.eda.org/ibis/bugs/ibischk/bugform.txt
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To report s2ibis, s2ibis2 and s2iplt bugs, use the Bug Report Forms which
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IBIS CURRENT MEMBER VOTING STATUS
I/O Buffer Information Specification Committee (IBIS)
|Organization |Interest |Standard|April 1,|April |May 11,|May 13,|
| |Category |s Ballot|2011 |22, |2011 |2011 |
| | |Voting | |2011 | | |
| | |Status | | | | |
|Advanced Micro |Producer |Active |X |X |- |X |
|Devices | | | | | | |
|Agilent |User |Active |X |X |- |X |
|Technologies | | | | | | |
|Ansys |User |Inactive|- |- |- |- |
|Apple Computer |User |Inactive|- |- |- |- |
|Applied |User |Inactive|- |- |- |- |
|Simulation | | | | | | |
|Technology | | | | | | |
|ARM |Producer |Inactive|- |- |- |- |
|Cadence Design |User |Active |- |- |X |X |
|Systems | | | | | | |
|Cisco Systems |User |Active |X |X |- |X |
|Ericsson |Producer |Active |X |- |X |- |
|Freescale |Producer |Inactive|- |- |- |- |
|Green Streak |General |Inactive|- |- |- |- |
|Programs |Interest | | | | | |
|Huawei |Producer |Inactive|- |- |- |- |
|Technologies | | | | | | |
|Hitachi ULSI |Producer |Inactive|- |- |- |- |
|Systems | | | | | | |
|IBM |Producer |Inactive|X |- |- |X |
|Infineon |Producer |Inactive|- |- |- |- |
|Technologies AG | | | | | | |
|Intel Corp. |Producer |Active |X |X |- |X |
|IO Methodology |User |Active |X |X |X |X |
|LSI |Producer |Inactive|- |- |- |X |
|Mentor Graphics |User |Active |X |X |- |X |
|Micron |Producer |Active |X |- |X |- |
|Technology | | | | | | |
|National |Producer |Inactive|- |- |- |- |
|Semiconductor | | | | | | |
|Nokia Siemens |Producer |Inactive|X |- |- |X |
|Networks | | | | | | |
|Signal Integrity|User |Active |X |X |- |X |
|Software | | | | | | |
|Sigrity |User |Inactive|- |X |- |- |
|Synopsys |User |Inactive|- |- |- |- |
|Teraspeed |General |Active |X |X |X |X |
|Consulting |Interest | | | | | |
|Texas |Producer |Inactive|- |- |- |- |
|Instruments | | | | | | |
|Toshiba |Producer |Inactive|- |- |- |- |
|Xilinx |Producer |Inactive|- |- |- |- |
|ZTE |User |Inactive|- |- |- |- |
|Zuken |User |Inactive|- |- |- |- |
Criteria for Member in good standing:
• Must attend two consecutive meetings to establish voting membership
• Membership dues current
• Must not miss two consecutive Meetings
Interest categories associated with TechAmerica ballot voting are:
• Users - Members that utilize electronic equipment to provide services
to an end user.
• Producers - Members that supply electronic equipment.
• General Interest - Members are neither producers nor users. This
category includes, but is not limited to, Government, regulatory
agencies (state and federal), researchers, other organizations and
associations, and/or consumers.